Tire filler



Patented .luly 14, 1925-.

UNITED STATES Vottenere yn NEIMAN, or BOULnER, lCOLORADO.

` TIRE FILLEE.'

` Application filed December 7, 1923. Serial No. @79,174.V

To all 'ia/wm it may concern.: 1' i Beit known that I, GEORGE D. NnIMi-iN, a citizen of the United States, residing atl Boulder, in the county of Boulder and State of Colorado, have invented certain new and useful Improvements in Tire Fillers, .of which the following is a specification, ref-v erence beinghad. therein to the accompanying drawing.

My invention relates to new and`useful improvements in tire fillers or cores and has for its principal object theprovision of a filler or core which is adapted to be placed within a casing usually employed in pneumatic tires the said core or filler taking the place of the usually usedV pneumatic tube and preventing blow-outs or puncturesbut at the same time providing sufficient resiliency to take up shock as would be the case with the employment of a pneumatic tire.

A further object of the invention resides in the provision of a i'iller. orcore 'which will be light inV weight yet resilient and yieldable to the desired degree and which. will not be affected by climatic'co-nditions nor liable to deterioration or to become hardened or compact due to impacts or the like.` Another object of the invention consists in forming the filler or core of a vplurality of sections whereby `it may be readily positioned within the casing and providing means for interlocking the sections so as tof properly position them within the casing,

said interlocking means beinginl the form of a. sphere preferably -of light material such as cork and the sections being preferably formed of rubber or similar resilient material provided with a plurality of openings therethrough, said openings permitting the necessary shock absorption and allowing the passage of airtherethrough t0 keep the filler or core, the interlocking sphere,A and the casing in cool condition at all times.

As a. further object the invention provides a filler or core made up of a plurality of sections, the sections being provided in each end with a recess so that when two sec-v said projections being of a sufficient width so that when the tire ispositio-ned within the rim there w1ll`bef a ,tight engagement between the cas'ingand iiller so as to prevent any creeping or sllppingof the filler or core y with respect to lthe casing or both the casing and filler or corewith respect to the `tire rim. `'Vith the above andother objects in View, which will appear as-the pdescriptionjpro ceeds, myinventionconsists in the novel def tails of construction, and arrangement` of parts described inthe' followingspecifica` tion and 4,illustrated in thejaccompanying drawings, and while I have illustrated and described the. preferred embodiments ofl the invention, as theynow appear to me, it will be understood that such` changes Vmay' be made as will fall within thev scope of :the appended claims. f

In the drawings: M

Fig. 1 'is a transverse radial. section thro-ugh the tire casing and filler with one of the interlocking spheres shown in elevation.

Fig. 2 is a longitudinal vertical section through the casing and filler, and f Fig. 3 isa perspective offone ofthe iiller sections. Y

- ln the drawings l indicatesthetire casing, of usual construction, having the edge poitions 2 which are adapted to be received between thefside flanges ofthe tirefrim. My- .improved'filler or` core is "made upv of a plurality of` sections 3 which, as more clearly illustrated in Fig. 2 of the drawings, are longitinilinallyl lcurved, with their rends slightly inclined, so thatwhen Lthesections are positioned within the casing they will form a ring ltofconform to the circumferential curvature of the: casing. As shown in Figs. l and 3 thevbodypo-rtionsofthe sections Varesubstantially round. Yin cross section and are provideduon the bottom. or base with a downwardlyextending projection 4',

said projections extending into the space between the side edges 2 of the' casing so that when the tire is positionedupon they tire rim, and the side edges 2 are engagedk between the iianges of the rim, there will be a tight engagement of the casing with the core or filler, the edges of thecasing engaging the sides of the projections iv and preventing slippingor creeping of the` filler or core with respect to the casing and the casing and filler or core with respect to the rim. Each 'section of the `filler or core is`V provided Withfa plurality lof openings nor passages 5 and while I have shown said openings or passages as extending"verticallyV Y, through the sections it Will be understood that, if desired, they migltbe eXtei'i'ded'at various angles. The sections 3 are formed of rubber or other resilient material and the openings or passages permit'of' the necessary shock absorption, when thev tire is in use, and at -:the saine time allow Stor the passagev or `circulationof air through the iiller', saidlcirculation o'the :alir coolingfthe casing, and fthe' `filler.

The sections 3 are provided, ateach end, with .a `concaved 'recess '6,wsaid lreoesseslo` adjacent sections forming a circular opening when the sections Vare broughtjtogether or'positi'oninlg Withinthe'casing It Willfbe noted 'th-'atsome ofth'e 'openings or'p'ass'ages 5 intersect-the@recesses 6. or connecting the sections, as i,well 'as :for reducing lthe 'WenghtV of' the iil'fler and at 'the same time `"to provide means "forA carryingthe :required load and' 'pressure land to retain th'ecorreet Working heiz'ghto'fv the 'fil-ler under actual service I vprovide the spheres or` yballs 7 which are Vfpreferablyof cork. These-"balls or spheres may be made .of ground .cork

- held together by a suitablel fadliesive substanceor Amay berorm'ed ofV strips or flat pieces secured together. :and tout" in lthe 1de siredsh-ape. :When these'ctions 1aret'ogether the @balls or 'spheres vill'fbevreceived in the recesses formed :inflth'efendsffof the sections allow -forthe resiliency to take E'up 'f shock or jars and the V-balls :or spheres: of -`cork or similar material 'will actaseal support :to maintain the c-orea't the correct height or shape, under l`actual service, Ito fcarry @the load. The rspheres'for'balls ott Ycork also 'act as the means for' interlocking 'the (sections and being yof @less weightthan'grubber AWill make the 'tire 'core or Vfiller of :less Weightl than zwould be'ithe case if entirely fof rubber "or similar material.

,It Willbe understood that the sections 3 may lbe ofvarying lengths and although I have illustrated the members 7 in the form of balls ,or spheres kthey might be of various shapes such as oval. The sections may also -be 'ma-de' ef-varyifng; diameters for use in casings of different diameters.' The filler or core will take, as has been kpreviously stated, the place of thea-ordinary rpneumatic inner tu'be- :and "While providing fthe required resiliency desiredv in tires 4ofthis charactor will prevent allpossibilities'of bloweouts or punctures.' At the same time 'the zfiller Aor core may, be 'used in different casings, being changeable from I,one casingto another when a casing becomes Worn.

:Having fully described my invention Whaty #Iiclaim as new fand* desi-1re to 'secure lby Letters \]:"--a`1tentis:v c Y 11'.' A ltire `ille'r rcomprising -a lplurality or" sect-ions of resilient material, Ieach section having atreces's in eachend, and members received `iny vthe recesses 'for interlocking the sections, said members .being of relatively rigid material.H e

2. Antire filler `comprising' a 7pluraltyorf sections `='liaving air kcirculati-ng passages therethrough, each section ha-ving recesses formed'in yitsends, some `of'tlie'fair passages intersecti'rigthe "recesses, andm'eans received l in the recesses -ifo'r interlocking thesect-ion's.

13.1.A-,tire'liller 'comprisinga plurality 'ot sections of resilient material, each section having La Arecess 'in :earch end and a plurality of airpassages therethrough, some of the air passages ,intersectingthe recesses, and membersreceived .inthe ,recesses1 for interlocking A the-sections, said ymembers being of relatively rigid tmateria'l.

4. :Artire iillercompris'ing a plurality ot resilientse'ctions,each .section having a longitudinally entendi-ng projection yon the lower surface thereof, a recess in each end, and air passages therethrough, some of the airpassages Vextending Y through the proj ec tion and others intersecting the 'end recesses, and ,means -received in the'- end recesses yfor interlocking adjacentsecti'ons. y Y Intestimony whereof I hereunto ahxlmy signature. Y. f, l

' fGEO-RGE D NEIMAN. l 

